feat(trace): Update OpenDC VM trace format

This change optimizes the OpenDC VM trace format by removing
unnecessary columns as well as optimizing the writer settings.

The new implementation still supports reading the old trace format in
case users run OpenDC with older workload traces.

3 files changed, 15 insertions, 15 deletions

diff --git a/opendc-experiments/opendc-experiments-capelin/src/test/kotlin/org/opendc/experiments/capelin/CapelinIntegrationTest.kt b/opendc-experiments/opendc-experiments-capelin/src/test/kotlin/org/opendc/experiments/capelin/CapelinIntegrationTest.kt
index 140a84db..ac2ea646 100644
--- a/opendc-experiments/opendc-experiments-capelin/src/test/kotlin/org/opendc/experiments/capelin/CapelinIntegrationTest.kt
+++ b/opendc-experiments/opendc-experiments-capelin/src/test/kotlin/org/opendc/experiments/capelin/CapelinIntegrationTest.kt
@@ -117,11 +117,11 @@ class CapelinIntegrationTest {
             { assertEquals(0, serviceMetrics.serversActive, "All VMs should finish after a run") },
             { assertEquals(0, serviceMetrics.attemptsFailure, "No VM should be unscheduled") },
             { assertEquals(0, serviceMetrics.serversPending, "No VM should not be in the queue") },
-            { assertEquals(221949826, monitor.idleTime) { "Incorrect idle time" } },
-            { assertEquals(68421374, monitor.activeTime) { "Incorrect active time" } },
-            { assertEquals(947010, monitor.stealTime) { "Incorrect steal time" } },
+            { assertEquals(223331032, monitor.idleTime) { "Incorrect idle time" } },
+            { assertEquals(67006568, monitor.activeTime) { "Incorrect active time" } },
+            { assertEquals(3159379, monitor.stealTime) { "Incorrect steal time" } },
             { assertEquals(0, monitor.lostTime) { "Incorrect lost time" } },
-            { assertEquals(5.783711298639437E9, monitor.energyUsage, 0.01) { "Incorrect power draw" } },
+            { assertEquals(5.841120890240688E9, monitor.energyUsage, 0.01) { "Incorrect power draw" } },
         )
     }
 
@@ -161,9 +161,9 @@ class CapelinIntegrationTest {
 
         // Note that these values have been verified beforehand
         assertAll(
-            { assertEquals(8545158, monitor.idleTime) { "Idle time incorrect" } },
-            { assertEquals(12195642, monitor.activeTime) { "Active time incorrect" } },
-            { assertEquals(941038, monitor.stealTime) { "Steal time incorrect" } },
+            { assertEquals(10998110, monitor.idleTime) { "Idle time incorrect" } },
+            { assertEquals(9740290, monitor.activeTime) { "Active time incorrect" } },
+            { assertEquals(0, monitor.stealTime) { "Steal time incorrect" } },
             { assertEquals(0, monitor.lostTime) { "Lost time incorrect" } }
         )
     }
@@ -210,10 +210,10 @@ class CapelinIntegrationTest {
 
         // Note that these values have been verified beforehand
         assertAll(
-            { assertEquals(8545158, monitor.idleTime) { "Idle time incorrect" } },
-            { assertEquals(12195642, monitor.activeTime) { "Active time incorrect" } },
-            { assertEquals(941038, monitor.stealTime) { "Steal time incorrect" } },
-            { assertEquals(3378, monitor.lostTime) { "Lost time incorrect" } }
+            { assertEquals(6013899, monitor.idleTime) { "Idle time incorrect" } },
+            { assertEquals(14724501, monitor.activeTime) { "Active time incorrect" } },
+            { assertEquals(12530742, monitor.stealTime) { "Steal time incorrect" } },
+            { assertEquals(473394, monitor.lostTime) { "Lost time incorrect" } }
         )
     }
 
@@ -253,11 +253,11 @@ class CapelinIntegrationTest {
 
         // Note that these values have been verified beforehand
         assertAll(
-            { assertEquals(8640140, monitor.idleTime) { "Idle time incorrect" } },
-            { assertEquals(12100660, monitor.activeTime) { "Active time incorrect" } },
-            { assertEquals(939456, monitor.stealTime) { "Steal time incorrect" } },
+            { assertEquals(11134319, monitor.idleTime) { "Idle time incorrect" } },
+            { assertEquals(9604081, monitor.activeTime) { "Active time incorrect" } },
+            { assertEquals(0, monitor.stealTime) { "Steal time incorrect" } },
             { assertEquals(0, monitor.lostTime) { "Lost time incorrect" } },
-            { assertEquals(2559305056, monitor.uptime) { "Uptime incorrect" } }
+            { assertEquals(2559005056, monitor.uptime) { "Uptime incorrect" } }
         )
     }
 
diff --git a/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/meta.parquet b/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/meta.parquet
index ee76d38f..da6e5330 100644
--- a/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/meta.parquet
+++ b/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/meta.parquet
diff --git a/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/trace.parquet b/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/trace.parquet
index 9b1cde13..fe0a254c 100644
--- a/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/trace.parquet
+++ b/opendc-experiments/opendc-experiments-capelin/src/test/resources/trace/bitbrains-small/trace.parquet